/* ═══ SPEAKING & PUBLICATIONS — Brutalist/Technical Theme ═══ */

.talk-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--bdr);
  border: 1px solid var(--bdr);
  overflow: hidden;
}

.talk-card {
  background: var(--card);
  display: flex;
  flex-direction: column;
  transition: background .3s;
}

.talk-card:hover {
  background: var(--card-h);
}

.talk-card__thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.talk-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s cubic-bezier(.25, 1, .5, 1);
}

.talk-card:hover .talk-card__thumb img {
  transform: scale(1.05);
}

.talk-card__play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, .9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all .3s ease;
}

.talk-card:hover .talk-card__play {
  opacity: 1;
}

.talk-card__play svg {
  margin-left: 2px;
}

.talk-card__body {
  padding: 1.75rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.talk-card__type {
  font-family: var(--fm);
  font-size: .6rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  display: inline-block;
  padding: .2rem .5rem;
  margin-bottom: .75rem;
  width: fit-content;
  border: 1px solid;
}

.talk-card__type--tedx {
  color: var(--accent);
  background: var(--accent-bg);
  border-color: rgba(232, 83, 14, 0.15);
}

.talk-card__type--panel {
  color: var(--t2);
  background: var(--bg2);
  border-color: var(--bdr);
}

.talk-card__type--podcast {
  color: var(--t2);
  background: var(--bg2);
  border-color: var(--bdr);
}

.talk-card__title {
  font-family: var(--fd);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: .5rem;
}

.talk-card__event {
  font-family: var(--fm);
  font-size: .7rem;
  color: var(--t3);
  margin-bottom: .75rem;
  letter-spacing: .03em;
}

.talk-card__desc {
  font-size: .9rem;
  color: var(--t2);
  line-height: 1.65;
  flex: 1;
}

.talk-card__links {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.talk-card__link {
  font-family: var(--fm);
  font-size: .65rem;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--t2);
  text-decoration: none;
  padding: .35rem .75rem;
  border: 1px solid var(--bdr);
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  transition: all .3s;
}

.talk-card__link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ═══ PAPER CARD ═══ */
.paper-card {
  background: var(--card);
  border: 1px solid var(--bdr);
  padding: 2rem;
  transition: all .3s ease;
}

.paper-card:hover {
  border-color: var(--accent);
}

.paper-card__type {
  font-family: var(--fm);
  font-size: .6rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-bg);
  padding: .2rem .5rem;
  display: inline-block;
  margin-bottom: 1rem;
  border: 1px solid rgba(232, 83, 14, 0.15);
}

.paper-card__title {
  font-family: var(--fd);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: .75rem;
}

.paper-card__authors {
  font-size: .8rem;
  color: var(--t3);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .4rem;
}

.paper-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: 1rem;
}

.paper-card__tag {
  font-family: var(--fm);
  font-size: .6rem;
  letter-spacing: .04em;
  padding: .2rem .5rem;
  border: 1px solid var(--bdr);
  color: var(--t2);
  background: var(--bg2);
}

.paper-card__tag--purple,
.paper-card__tag--blue,
.paper-card__tag--green,
.paper-card__tag--orange,
.paper-card__tag--pink,
.paper-card__tag--cyan,
.paper-card__tag--indigo,
.paper-card__tag--gray {
  color: var(--t2);
  background: var(--bg2);
  border-color: var(--bdr);
}

.paper-card__desc {
  font-size: .92rem;
  color: var(--t2);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.paper-card__link {
  font-family: var(--fm);
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #fff;
  background: var(--accent);
  text-decoration: none;
  padding: .5rem 1rem;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  transition: all .3s;
}

.paper-card__link:hover {
  background: #c94400;
}

/* ═══ INVITE TO TALK ═══ */
.invite-talk-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: 1.75rem;
  padding: .6rem 1.5rem;
  font-family: var(--fm);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  color: #fff;
  -webkit-text-fill-color: #fff;
  background: var(--accent);
  border: 1px solid var(--accent);
  transition: all .3s ease;
}

.invite-talk-btn:hover {
  background: #c94400;
  border-color: #c94400;
  transform: translateY(-2px);
}

/* ═══ IMAGE CAROUSEL ═══ */
.img-carousel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--bdr);
}

.img-carousel__track {
  display: flex;
  transition: transform .5s cubic-bezier(.25, 1, .5, 1);
  gap: 1rem;
}

.img-carousel__slide {
  flex: 0 0 calc(25% - .75rem);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.img-carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.img-carousel__slide:hover img {
  transform: scale(1.05);
}

.img-carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  background: var(--bg);
  border: 1px solid var(--bdr);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--t1);
  transition: all .3s;
  z-index: 2;
  font-size: 1rem;
}

html[data-theme="dark"] .img-carousel__btn {
  background: var(--card);
}

.img-carousel__btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.img-carousel__btn--prev { left: .75rem; }
.img-carousel__btn--next { right: .75rem; }

@media(max-width:900px) {
  .talk-grid {
    grid-template-columns: 1fr;
  }

  .img-carousel__slide {
    flex: 0 0 calc(33.33% - .67rem);
  }
}

@media(max-width:600px) {
  .img-carousel__slide {
    flex: 0 0 calc(50% - .5rem);
  }
}